Nature's Mystery: The Triple Point of Water Explained

The triple point of water is a unique physical state where water exists simultaneously as a solid, liquid, and gas. 

At precisely 0.01°C and 611.657 pascals of pressure, water's solid form (ice), liquid form, and gaseous form (water vapor) coexist in equilibrium. 

This point is significant in thermodynamics and metrology as it serves as a reference for defining the Kelvin temperature scale and the standard atmospheric pressure.

Understanding the triple point of water is crucial for calibrating thermometers and pressure gauges accurately. 

It showcases the fascinating interplay between temperature, pressure, and the states of matter.